(1S,2S)-2-amino-1-(4-methanesulfonyl-phenyl)-propane-1,3-diol, threo-1-p-methanesulfonylphenyl-2-amino-1,3-propanediol, (1S,2S)-(+)-threo-1-(p-methylsulfonylphenyl)-2-amino-1,3-propanediol, (1S,2S)-2-Amino-1-(4-methansulfonyl-phenyl)-propan-1,3-diol, (1S,2S)-1-(4-methylsulfonylphenyl)-2-amino-1,3-propanediol,